Pipe coupling



Aug. 26,. N246 LSOEG v A. CATTONI PIPE COUPLING Filed May 19, 1923Patented Aug. 2e, 1924.'A

I .UNITED STATES PATENT, o

ALnINc cAr'roNL-' or nmronn, PENNSYLVANIA.

Fries.

rrrn courante.

Applieation. med vmy is, 192s. serial no. 640,184,

'To al? whom t may camera:

Beit known thatll, ALBINO Genom, 'a

, citizen of the United States, residing at Pipe Coupling,

-Bradford, inthe county as to provide a tight joint that ywill withstandthe pressure of liquid passing through' application of my Vimproved pipecoup' '.ventionhereinafter ap said pipe sections.

e' primary object of my invention is to provide Aa /p'ipe coupling orunion of this general type tion of coupling pipe sections to provide aleak-tight joint, yand in the present instance will couple-unthreadedends of pipe sections to thereby obviate the necessity 'of threadingthem as required in the use of the conventional form of union,l being.particularly useful and convenient in connecting pipes., hose andy tubesof the water circulating sys# tems .of automobile and other `internalcom'- bustion engines.- v v A further object of, my invention is tocouple'or connect the plain ends of pipe sections by 'a coupling inwhichathe `particul'ar-' construction `and arrangement of partscooperate to reinforce the joint vand thereby` Yprovides. strongconnection that is not liable to become loose and leak in such instanceswhere the connected pipes are subjectedY to vibration." (Other objectsandr advantages of my in- .ll particularly claim as new set forth in theappendedclaim.

lin the drawings: Fig. l is a side elevation illustrating Fig. 2 is yalongitudinal sectional' view through the pipe coupling/showing sectionsof ipe connected thereby i 3 is a detail sectional view of the coup gwith the parts at one endparated -om 'the'body portion. v F 4l an endview of onepr on collars, and

` Fig. 5. is a -=||Hview tion of the coupling. 't

Fig. 6 is a sectionalview showing a modiltions of the which willfacilitate' the opera- -construction of the com p 'for the'sainepurpose. liigln'ation otithis body ar, and vwhat and' desire to protectbyllietters Patent is more specifically :tion of the 'openin f 7, thatis'that portion,

er th of the body paf-l male threads when the collars are'connected Asillustrated in the drawings my improved coupling device comprises asubstantially cylindrical body portion v7 with van openingtherethrough'enlarged in diameter at its ends, compression [collars orglands 8 threaded body portion to receive they sections of pipe whichextend through the same to meet at the center of the body portion, rings9 interposed between the inner ends 'of the compression collars andopposing walls within the body portion to be .compressedY pipe; theconnected end por-.

around the -pipe sectionsli fitting snugly within the reduced centerportion of the and packing into the opposite ends of said body and inthe compression collarsl to 'reinforce the connection while theparticular interior shape of the bo with the packinglrings nonfleakablejoint.

'The .bodyJ 'portion 7- of spool-shape, the enlarged ends 10 tapering yportion cooperate to provide a tight to the reduced centerportion 1l,and -said` enlarged ends are squared or iattened'to receive an ordinarynut-wrench for holding this vpart of thegcoupling device during thepperation of turning the compression lcups 8 unto or out of the same,though it will be understood that said enlarged ends may be. milled orprovided with holes to receive rods 'The spool-shape conapproximately-withthe' shape of theopening extending through tlievsame, for it willression collars and portion corresponds the coupling is beJ noted thatthe contracted portion 'l2 of said opening is-'at the center ll andgthe.end portions 13 oflarger diameter are within theenlarged ends l0 ofsaid body. ln the present'instance, also, the intermediate por *at eachend of the body as le, of said opening between the smaller di diameterlis/concave vto receive thepaclring-ring 9 and cooperate with the er endameter 12 and larger icc e ,compression-collar 8 in forming a yleak-proof joint. For this purposethe openl .Y

ing t rough-the compression'wcollar for the pipe is atitsV inner endtlaredoutward con,

verly.

. Female-threads Aare formed in theends of the body portion 7 and malethreads onthe compresslon collars to engage said fe# 'tosaid bodyportion, and in orderthat these Y eollars may be readily turned they'are l threads at both ends of the coupling are' preferably right-handthreads, that is` to say both collars are turned .to the right-withrespect to each vend of Ythe coupling- 1n inexperienced in work of thiskind.

screwing them into the body portion.

The vpacking rings 9 may be -made of rubber, leather, or other materialusually employed forv a like purpose, being shaped substantiallysemi-circular in cross-section with a straight opening therethroughslightly flared at one end', its outer end, lto receive the pipe, andthe opening in each packing ring corresponds in diameterwith thecentralbore- 12 in the body portion 7 and with vthe openings through thecompression collars8 forming a continuous opening to receive the pipesections, it being understood Y,of course that the pipe-coupling will bemade in different sizes for, use in connection with standard sizes ofpipe.,

ln assembling the coupling device for sale to the trade the packing.rings 9 are inserted into the opposite ends of the body portion 7v toengagethe concavity 14 at the inner -end of each enlarged end portion ofthe portion of each `pipe-'sectionJ into the cou.

opening through said body portion,'and then the compression lc`ollars.8.are screwed into the opposite ends of the body portion to bear slightlyagainst said'packing rings, as

shown -at-the left o Fig. 3 ofthe drawings. 35

In using the .device to couple two pipe sectionsit is only necessarytoinsert Aan end pling at opposite ends thereof, passing saidpipe-sections throu h the compression-col-A lars and packing rings untilthey meet -in the bore at the center of the body'portion, and then theAcompression-collars are turned t'o compress the packing rings tightlyand prevent leakage. When the pipe sections are coupled they. are firmlyheld by the engagement of the packing-rings, Aand as each j' section.has an extended bearing in the couof a' motor vehicle.

lpling device the joint is not likely to become:

loose and will therefore'hold even when the pipe is subjected tovibration, as for instance when employed in the water cooling system.However, it will be obvious that 'the improved coupling device may beused wherever it is desired to couple two pipes, hose, tubings, andinany instance joining pipe or tubing is very simple it may be quicklyaccomplished even by a person Although l prefer to make the body portionspool-shape, as hereinbefore stated and for the purposes set forth thisis not essential, and likewise the flanged ends of the compressioncollars may -be shaped in a different manner within the scope of myinvention and'claim.

In Fig. 6 I have shown a modification of the coupling for use with hoseor rubber tubing, in which the concavity 14a in the body portion isextended forward to provide an annularl lip 12b over which the inner endof said flexible hose or tbing is distended or sprung and clamped byscrewing the compression collar 8 in place', thus dispensing with thepackin ring. However, hose or rubber pipe of t e usual'thickne'ssandstability inay be connected as shown in the preferred form of thecoupling in which the packing ring is employed.y

l claim: l

A pipe coupling comprising a body lportion or casing through the centralportion of whichcorresponds in diameter with the external diameter ofthe sections of pipe to. be coupled and the end portions ofsaid openingbeing of larger diameter and threaded; the inner annular end-wall ofeach enlarged portion having an opening there' of the opening having aplain concave surface; together with ,convex packing rings fitting intheenlarged portions of the opening in the body' portion or casing andadapted to receive the ends of the pipe sections through them, saidpacking rings being of resilient material and fitting against theaforewalls in compressing the packing rings to :Eorm a tight joint.

ALBINO CATTNE.

los

